The lens consists of an array with any curved surface of revolution, or of dielectric material.
该透镜由任意旋转曲面形阵列或介质材料构成。
2
Because of the vibrating always exist, the revolution center is variable, and then the material is seldom stratified.
振动的存在使物料旋转中心不断变化，物料分层不易形成。
3
According to carving the different material quality writing, but passing a fuselage, superjacent revolution adjusts Niu adjusting the weight delineating arbitrarily.